13.11 Complete the following reactions:
(iv)
Ethanol reduces the benzene diazonium chloride to benzene and oxidises into ethanal (), hydrochloric acid produces as a by-product and evolution of nitrogen gas is also occurring.
Benzene diazonium chloride salt can be formed by treating aniline in presence of sodium nitrate and hydrochloric acid, when benzene diazonium chloride is further treated with ethanol that is a mild reducing agent so it removes benzene from the diazonium salt and itself getting reduced to an aldehyde also producing nitrogen gas and hydrochloric acid as different products. Nitrogen gas is usually evolved in reaction involving benzene diazonium chloride as it has two nitrogen present in the structure thus dinitrogen can be easily escaped from the reaction.